I'm pretty sure that B&W benchmarks indicated that the real-world benefit of 66 MHz PCI slots over 33 MHz PCI slots is something like a 10% boost. Still, for hack value, this would be interesting. But it begs the questions: how would you verify that your PCI bus is operating at a full 66 MHz, and how would you test the throughput on the bus when your system bus can't saturate it?

Peace,

Drew